Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882924 | Method and apparatus for manufacturing hollow cylindrical guide roller for magnetic recording tape | Hideo Kojima | 1989-11-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882924 | Method and apparatus for manufacturing hollow cylindrical guide roller for magnetic recording tape | Hideo Kojima | 1989-11-28 |